Home / 2,239.28-3,092.10-1,577.60

Finding the Fourth Proportional to 2,239.28, 3,092.10 and 1,577.60

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Solution

The fourth proportional to 2,239.28, 3,092.10 and 1,577.60 is: 2,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.28 : 3,092.10 = 1,577.60 : x
  2. Step 2: Convert to fraction form
    2,239.28/3,092.10 = 1,577.60/x
  3. Step 3: Cross multiply
    2,239.28x = 3,092.10 × 1,577.60
  4. Step 4: Simplify right side
    2,239.28x = 4,878,096.96
  5. Step 5: Solve for x
    x = 4,878,096.96/2,239.28
  6. Step 6: Final answer
    x = 2,178.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.